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May 13, 2009 4:24 am
May 13, 2009 4:24 am
Subject: Re: Camshaft bearing problem
Alas there were no reactions my query; apparently it is not clear to anyone how the new 2 Litre camshaft bearings, supplied by the Club, should be installed. It may be that nobody has used them so far.
There exists a diatribe on this subject written by the eminent Phil Ridout but it deals with the old type camshaft bearings which are different in construction. However, the fact that the old type bearings do not have a groove but a single hole for the lock screw indicates that the groove on the new ones is indeed to secure the bearing with the lock screw - enabling it to be moved back and forth; depending on the position of the camshaft. Also the profile of the end of the lockscrew perfectly fits in the groove. Meanwhile I have installed it like this and have done another few hundred miles without any problems.
I do not know if anybody reads this but I hope it will not go unnoticed as I strongly believe that this is the correct way to fix the camshaft bearings. Finally, I found out how the bearings are lubricated; the oil level in the galleries is just above half way the camshafts. The surplus is thrown out through holes in the front and lubricates the timing chains before it trickles down into the sump.
Alas there were no reactions my query; apparently it is not clear to anyone how the new 2 Litre camshaft bearings, supplied by the Club, should be installed. It may be that nobody has used them so far.
There exists a diatribe on this subject written by the eminent Phil Ridout but it deals with the old type camshaft bearings which are different in construction. However, the fact that the old type bearings do not have a groove but a single hole for the lock screw indicates that the groove on the new ones is indeed to secure the bearing with the lock screw - enabling it to be moved back and forth; depending on the position of the camshaft. Also the profile of the end of the lockscrew perfectly fits in the groove. Meanwhile I have installed it like this and have done another few hundred miles without any problems.
I do not know if anybody reads this but I hope it will not go unnoticed as I strongly believe that this is the correct way to fix the camshaft bearings. Finally, I found out how the bearings are lubricated; the oil level in the galleries is just above half way the camshafts. The surplus is thrown out through holes in the front and lubricates the timing chains before it trickles down into the sump.